Abstract: A muffler includes an inner pipe and an outer pipe which, along with the inner pipe, forms a double-wall pipe. A cavity is provided between the inner and outer pipes. A first end of the double-wall pipe is closed between the inner and outer pipes, and a second end of the double-wall pipe has an opening between the inner and outer pipes. The cavity communicates with an exhaust channel via the opening. The cavity is formed as a result of the inner pipe being shaped in a manner such that a portion of an outer-circumferential surface of the inner pipe is positioned on an inner-circumferential side relative to a reference, the reference being a position of an outer-circumferential surface of the outer pipe.

Abstract: An exhaust heat recovery device includes a first heat exchanger, a second heat exchanger, a gas passage, a liquid passage, and a self-pressure valve. The first heat exchanger performs heat exchange between exhaust gas and a heat medium so as to evaporate the heat medium. The second heat exchanger performs heat exchange between a heated target and the heat medium evaporated in the first heat exchanger, the heated target being defined as at least one of cooling water and oil so as to heat the heated target and to liquefy the heat medium. A loop heat pipe is formed by the first heat exchanger, the second heat exchanger, the gas passage, and the liquid passage.

Abstract: An integrated exhaust heat recovery device positioned in an exhaust gas channel includes: a positioning section that comprises a tubular section extending in a downward-flow direction of exhaust gas, and has an exhaust gas purification device positioned therein; a heat exchange section positioned on a downstream side of the positioning section and having a heat exchanger; and an exhaust gas control unit for introducing exhaust gas, which flows from the positioning section, to the heat exchange section. The heat exchanger includes: a plurality of plates positioned so as to overlap in the downward-flow direction; an intake section for causing fluid to flow into heat exchange channels inside the plurality of plates from an intake port that opens laterally; and a discharge section for causing fluid to exit from the heat exchange channels through a discharge port that opens laterally.

Abstract: Provided is a joining process of two pipes, which can reduce man-hours of the joining process and join the cylindrical pipes together at high accuracy. A first pipe comprises, at an end thereof, an insertion portion having a cylindrical shape to be inserted into a second pipe. The second pipe comprises, at an end thereof, a receiving portion having a tubular shape into which the insertion portion is inserted. A cross sectional shape of at least a hollow portion of the receiving portion, perpendicular to a central axis thereof, is circular. At least one threaded hole is arranged in an area where the receiving portion and the insertion portion overlap each other. The at least one threaded hole penetrates the receiving portion and the insertion portion in a radial direction. A bolt is threadedly engaged in the at least one threaded hole.

Abstract: A canister is mounted on a vehicle and comprises at least one chamber, an inflow port, an atmosphere port, an outflow port and elongated adjusting parts. The inflow port allows evaporated fuel to flow into the at least one chamber from a fuel tank of the vehicle. The outflow port allows the evaporated fuel adsorbed by an adsorbent to flow out towards an engine by air from the atmosphere port. The adjusting parts are arranged with the adsorbent in an object chamber, which is at least one of the at least one chamber.

Abstract: A disposing method for an inlet pipe in a muffler that includes an outer shell, an inlet pipe, and a separating plate, the disposing method comprising: a first step of inserting the inlet pipe into the outer shell from an opening at one end of the outer shell; a second step of disposing the inlet pipe by moving the inlet pipe within the outer shell in a direction substantially orthogonal to the direction of insertion of the inlet pipe; and a third step of disposing the separating plate by inserting the separating plate into the outer shell from the opening at the other end of the outer shell.

Abstract: A battery case comprises: a first casing member; a second casing member to form a closed space together with the first casing member; a foam material provided along an inner wall surface of the closed space; and a reinforcing member provided in the closed space so as to hold the foam material between the reinforcing member and the inner wall surface.

Abstract: In an exhaust heat recovery device, exhaust gas flows out from a heat exchange outflow port into a heat exchange passage. The exhaust gas having flowed out into the heat exchange passage flows in a radial direction from an inner side to an outer side of a heat exchanger to reach a second heat exchange passage from a first heat exchange passage. A heat exchange is performed in the heat exchanger while the exhaust gas flows.

Abstract: A silencer comprises a casing, an inlet pipe for introducing an exhaust into the casing, and an outlet pipe for discharging the exhaust out of the casing. A lid is provided at an exhaust inflow side opening of the outlet pipe and arranged to close the exhaust inflow side opening. The lid has an exhaust inlet for flowing the exhaust into the outlet pipe, a valve body for opening and closing the exhaust inlet, and at least one communication hole formed separately from the exhaust inlet. The valve body is configured to be rotationally movable about a rotation axis of the valve body inside the outlet pipe. The at least one communication hole is provided closer to the rotation axis of the valve body than the exhaust inlet.

Abstract: An exhaust gas purification device comprises a catalyst disposed to the exhaust-gas flow path, and an inhibiting member that is disposed downstream of the catalyst in the exhaust-gas flow path, and diminishes a bias in flow-rate distribution of exhaust gases that flow into the catalyst by inhibiting a partial flow of the exhaust gases that flowed out of the catalyst, wherein the inhibiting member comprises a concave part comprising a concave shape facing the catalyst, and inhibits, by the concave part, a partial flow of the exhaust gases that flowed out of the catalyst.

Abstract: A catalytic converter comprises: a catalyst carrier that purifies exhaust gases from an internal combustion engine; and a catalyst housing tube that houses the catalyst carrier. The catalyst housing tube comprises: an inlet-side conical part that comprises an exhaust-gas inlet, an inner diameter of the inlet-side conical part increasing as a distance from the exhaust-gas inlet increases; a tube part that comprises the catalyst carrier arranged therein; and, an outlet-side conical part that comprises an exhaust-gas outlet, an inner diameter of the outlet-side conical part increasing as a distance from the exhaust-gas outlet increases. A conical inner tube is further provided inside the inlet-side conical part, a diameter of the conical inner tube being smaller than that of the inlet-side conical part, and, the inlet-side conical part and the conical inner tube form a double structure upstream of the catalyst carrier.

Abstract: A fuel inlet includes: an inlet pipe to form a path to guide fuel to a fuel tank; a breather tube to form a path to guide vapor in the fuel tank toward a distal end portion of the inlet pipe; and a retainer provided at a distal end portion of the inlet pipe and including: an attachment and detachment mechanism to attach and detach a fuel filler cap; a restriction mechanism to restrict a distal end position of a fuel filling gun; and an air vent hole to allow passage of the vapor supplied from the breather tube toward the distal end portion of the inlet pipe. The retainer includes a first component including the attachment and detachment mechanism and a second component secured to the first component and including the restriction mechanism. The air vent hole is a gap formed between the first component and the second component.

Abstract: A switching unit is capable of switching in a stepwise manner a relative position of a second die with respect to a cutting member in an approaching-and-separating direction. A restriction member abuts on the second die and restricts a position of the second die with respect to a movable body in the approaching-and-separating direction. A driving unit changes a position of the restriction member with respect to the second die, and switches an abutment state of the restriction member with respect to the second die. A level difference is formed on a surface on a side of the restriction member facing to the second die, and/or on a surface on a side of the second die facing to the restriction member.

Abstract: An exhaust pipe that forms an exhaust flow channel includes a first flow channel member that forms part of the exhaust flow channel, and a second flow channel member connected in series with the first flow channel member, and forms part of the exhaust flow channel. A downstream-side end of the first flow channel member is inserted into an upstream-side end of the second flow channel member. A communication channel that communicates between an inside and an outside of the exhaust pipe is formed between an outer surface of an insertion part of the first flow channel member and an inner surface of an insertion-receiving part of the second flow channel member. The insertion-receiving part is arranged to face higher than a horizontal direction.

Abstract: According to one embodiment, there is provided a burner includes a nozzle member formed with a first penetration hole through which the ignition means can penetrate, a downstream side nozzle fixing unit formed with a second penetration hole through which the nozzle member can penetrate, wherein the first penetration hole is coaxial with the second penetration hole, and an upstream side nozzle fixing unit formed with a third penetration hole through which the ignition means can penetrate, wherein the third penetration hole is coaxial with the second penetration hole, and the ignition means is coaxial with the third penetration hole.

Abstract: Provided is an exhaust treatment device including a cylindrical shell into which an exhaust gas is introduced, and a flow channel pipe that penetrates through the cylindrical shell. One end of the flow channel pipe is connected to an exhaust-gas flow path of an internal combustion engine, and the exhaust gas is introduced into the cylindrical shell via the flow channel pipe. A pair of through holes, in which the flow channel pipe is disposed, are provided in a pipe wall of the cylindrical shell. A lid member configured to occlude one of the through holes is welded to the other end of the flow channel pipe so as to occlude an opening in the other end. The lid member is welded to the pipe wall so that the one of the pair of through holes is occluded by the lid member.

Abstract: Provided is a catalytic converter to be disposed in a branch portion between an exhaust gas passage that guides exhaust gas from an internal combustion engine to outside and an exhaust gas recirculation passage that recirculates a portion of the exhaust gas from the exhaust gas passage to an intake system of the internal combustion engine. The catalytic converter comprises a catalyst storage case that stores a catalyst, a recirculation pipe that forms the exhaust gas recirculation passage, an abutment portion that makes the catalyst storage case and the recirculation pipe be in surface contact with each other and be arranged in parallel to each other, and a downstream cone that makes the exhaust gas passage and the exhaust gas recirculation passage merge with each other.

Abstract: The present invention provides a tube end molding method comprising: a tube shrinking step for forming a tapered portion and a small diameter tube portion at one end of an original tube; a preparing step for preparing a holding die having an original tube bore and a tube expanding bore; and a tube expanding step including a first step for mounting the original tube at the original tube bore of the holding die, a second step for folding the small diameter tube portion inside the original tube beginning at the tapered portion, and a third step for pressing the folded portion against an inner wall of the tube expanding bore.

Abstract: A muffler comprises an outer shell, an outlet pipe, and a restraining mechanism. A restraining mechanism restrains a height of spout of a liquid that flows inside the outlet pipe through a designated vent hole, the designated vent hole is at least one vent hole facing against a bottom surface of the outer shell among the at least one vent hole that the outlet pipe comprises.

Abstract: A valve device includes a butterfly valve and a first link member each supported by a stay so as to be rotationally movable about a first rotation axis and a second rotation axis, respectively, a second link member supported by the butterfly valve so as to be rotationally movable about a third rotation axis, and a spring to bias the butterfly valve in a valve closed direction. The first link member and the second link member are connected to each other so as to be mutually rotationally movable about a fourth rotation axis. An angle formed by a first link line connecting the second rotation axis and the fourth rotation axis to each other and a second link line connecting the third rotation axis and the fourth rotation axis to each other is formed to be the largest when the butterfly valve is in a valve closed state.